vb常用代码大全

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移动无标题栏的窗体

dim m(borderstyle=none)

ouseX as integer

dim mouseY as integer

dim moveX as integer

dim moveY as integer

dim down as boolean

form_mousedown: ’mousedown事件

down=true

mouseX=x

mouseY=y

form_mouseup: ’mouseup事件

down=false

form_mousemove

if down=true then

moveX=me。left-mouseX+X

moveY=me.top—mouseY+Y

me.move moveX,moveY

end if

*******************************************闪烁控件

比如要闪烁一个label(标签)

添加一个时钟控件 间隔请根据实际需要设置 enabled属性设为true

代码为:label1。visible=not label1。visible

*******************************************

禁止使用 Alt+F4 关闭窗口

Private Declare Function DeleteMenu Lib

"user32" (ByVal hMenu As Long, ByVal

nPosition As Long, ByVal wFlags As Long) As Long

Private Declare Function GetMenuItemCount Lib ”user32” (ByVal hMenu As Long) As Long

Private Const MF_BYPOSITION = &H400&

Private Sub Form_Load()

Dim hwndMenu As Long

Dim c As Long

hwndMenu = GetSystemMenu(Me。hwnd, 0)

c = GetMenuItemCount(hwndMenu)

DeleteMenu hwndMenu, c - 1, MF_BYPOSITION

c = GetMenuItemCount(hwndMenu)

DeleteMenu hwndMenu, c - 1, MF_BYPOSITION

End Sub

启动控制面板大全

'打开控制面板

Call Shell("rundll32.exe shell32。dll,Control_RunDLL”, 9)

'辅助选项 属性-键盘

Call Shell("rundll32。exe shell32.dll,Control_RunDLL access.cpl,,1”, 9)

'辅助选项 属性—声音

Call Shell("rundll32。exe shell32。dll,Control_RunDLL access.cpl,,2”, 9)

’辅助选项 属性—显示

Call Shell("rundll32.exe shell32.dll,Control_RunDLL access.cpl,,3", 9)

'辅助选项 属性—鼠标

Call Shell(”rundll32.exe shell32.dll,Control_RunDLL access。cpl,,4”, 9)

'辅助选项 属性-常规

Call Shell(”rundll32。exe shell32.dll,Control_RunDLL access。cpl,,5”, 9)

’添加/删除程序 属性-安装/卸载

Call Shell(”rundll32.exe shell32。dll,Control_RunDLL Appwiz。cpl,,1”, 9)

’添加/删除程序 属性-Windows安装程序

Call Shell(”rundll32。exe shell32。dll,Control_RunDLL Appwiz.cpl,,2”, 9)

’添加/删除程序 属性—启动盘

Call Shell("rundll32.exe shell32.dll,Control_RunDLL Appwiz。cpl,,3”, 9)

'显示 属性—背景

Call Shell(”rundll32.exe shell32。dll,Control_RunDLL desk.cpl,,0”, 9)

’显示 属性—屏幕保护程序

Call Shell(”rundll32。exe shell32。dll,Control_RunDLL desk.cpl,,1", 9)

’显示 属性-外观

Call Shell("rundll32.exe shell32.dll,Control_RunDLL desk。cpl,,2", 9) VB常用代码 - 2 -

’显示 属性—设置

Call Shell(”rundll32。exe shell32.dll,Control_RunDLL desk.cpl,,3”, 9)

'Internet 属性-常规

Call Shell("rundll32.exe shell32.dll,Control_RunDLL Inetcpl.cpl,,0”, 9)

’Internet 属性—安全

Call Shell("rundll32。exe shell32。dll,Control_RunDLL Inetcpl。cpl,,1", 9)

'Internet 属性-内容

Call Shell(”rundll32.exe shell32.dll,Control_RunDLL Inetcpl.cpl,,2", 9)

'Internet 属性-连接

Call Shell(”rundll32.exe shell32.dll,Control_RunDLL Inetcpl。cpl,,3”, 9)

*******************************************

怎样关闭一个程序

你可以使用API函数FindWindow和PostMessage来寻找一个窗口并且关闭它。下面的范例演示如何关闭一个标题为”Calculator"的窗口.

Dim winHwnd As Long

Dim RetVal As Long

winHwnd = FindWindow(vbNullString,

"Calculator")

Debug.Print winHwnd

If winHwnd 〈〉 0 Then

RetVal = PostMessage(winHwnd, WM_CLOSE, 0&, 0&)

If RetVal = 0 Then

MsgBox "Error posting message。”

End If

Else

MsgBox ”The Calculator is not open。"

End If

For this code to work, you must have declared the API functions in a module in your project. You must put the following in

the declarations section of the module。

Declare Function FindWindow Lib ”user32” Alias _

”FindWindowA" (ByVal lpClassName As String, _

ByVal lpWindowName As String) As Long Declare Function PostMessage Lib ”user32” Alias _

”PostMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, _

ByVal wParam As Long, lParam As Any)

As Long

Public Const WM_CLOSE = &H10

*******************************************

如何使Form的背景图随Form大小改变

单纯显示图形用Image即可,而且用Image也正好可解决你的问题

设定Image的Stretch=true

在加入以下的code

Private Sub Form_Resize()

Image1。Move 0, 0, ScaleWidth, ScaleHeight

End Sub

或者使用以下的方式来做也可以

Private Sub Form_Paint()

Me。PaintPicture Me.Picture, 0, 0, ScaleWidth, ScaleHeight

End Sub

*******************************************

软件的注册

可用注册表简单地保存已用的天数或次数

'次数限制(如30次)如下:

Private Sub Form_Load()

Dim RemainDay As Long

RemainDay = GetSetting(”MyApp", "set", ”times”, 0)

If RemainDay = 30 Then

MsgBox ”试用次数已满,请注册”

Unload Me

End If

MsgBox "现在剩下:" & 30 - RemainDay & "试用次数,好好珍惜!”

RemainDay = RemainDay + 1

SaveSetting "MyApp", "set", "times”, RemainDay